GB/T 25922-2023 Measurement of fluid flow in closed pipes The flow is measured with a vortex flowmeter installed in a pipe of circular cross-section filled with fluid (English Version)
2023GB/T 25922-2023 Measurement of fluid flow in closed pipes The flow is measured with a vortex flowmeter installed in a pipe of circular cross-section filled with fluid
2011GB/T 25922-2010 Measurement of fluid flow in closed conduits.Flowrate measurement by means of vortex shedding flowmeters inserted in circular cross-section conduits running full